Insufficient Concrete Cover for bored pile that's already cast
Insufficient Concrete Cover for bored pile that's already cast
(OP)
Hi guys,
May you kindly share the experience of how you rectified the low concrete cover of the bored pile that's already cast? The specified concrete cover should be 75mm but it's found less than 30mm at the actual site. To add an additional concrete cover or providing a protective coating on the concrete surfaces is not possible as the bored pile length is 33m below the ground level.
Here is the attached picture.
https://files.engineering.com/getfile.aspx?folder=...
May you kindly share the experience of how you rectified the low concrete cover of the bored pile that's already cast? The specified concrete cover should be 75mm but it's found less than 30mm at the actual site. To add an additional concrete cover or providing a protective coating on the concrete surfaces is not possible as the bored pile length is 33m below the ground level.
Here is the attached picture.
https://files.engineering.com/getfile.aspx?folder=...
RE: Insufficient Concrete Cover for bored pile that's already cast
-----*****-----
So strange to see the singularity approaching while the entire planet is rapidly turning into a hellscape. -John Coates
-Dik
RE: Insufficient Concrete Cover for bored pile that's already cast
RE: Insufficient Concrete Cover for bored pile that's already cast
WMA
RE: Insufficient Concrete Cover for bored pile that's already cast
-----*****-----
So strange to see the singularity approaching while the entire planet is rapidly turning into a hellscape. -John Coates
-Dik
RE: Insufficient Concrete Cover for bored pile that's already cast
@WMArmstrong: Thank you. Adding more piles is supposed to be the last resort.
RE: Insufficient Concrete Cover for bored pile that's already cast
-----*****-----
So strange to see the singularity approaching while the entire planet is rapidly turning into a hellscape. -John Coates
-Dik
RE: Insufficient Concrete Cover for bored pile that's already cast
Doing shorter piles also isn't a good option as those shorter piles will have different performance characteristics. When possible, uniformity in the foundation system is usually important. The project geotech would be a big help here, though, as they may be able to assist in finding an acceptable solution.
RE: Insufficient Concrete Cover for bored pile that's already cast
-----*****-----
So strange to see the singularity approaching while the entire planet is rapidly turning into a hellscape. -John Coates
-Dik
RE: Insufficient Concrete Cover for bored pile that's already cast
Is the soil aggressive for corrosion?
Check the capacity of the pile assuming reasonable corrosion reduction in the area of the as-built reinforcing steel?
Jet grout down along the perimeter of the pile?
Install a new pile?
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